forked from len0rd/rockbox
Sansa Fuze buttons:
1) fix driver from reading invalid home button while lcd updates (use old value then) 2) put in a 1s delay for power button reading after releasing hold 3) revert r20028, I thought it wasn't needed, since I didn't update the bootloader 4) enable hold for the bootloader (even though not really needed, but is consistent with other targets) 5) let button_dbop return DBOP_DIN, and do the reading in button_read_device 6) various cleanups git-svn-id: svn://svn.rockbox.org/rockbox/trunk@20054 a1c6a512-1295-4272-9138-f99709370657
This commit is contained in:
Thomas Martitz
parent
a6a7bac01a
commit
1cb3ff0ab0
2 changed files with 89 additions and 81 deletions
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@ -35,34 +35,35 @@
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#define WHEEL_REPEAT_INTERVAL 30
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#define WHEELCLICKS_PER_ROTATION 48 /* wheelclicks per full rotation */
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#ifndef BOOTLOADER
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/* Buttons */
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static bool hold_button = false;
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#ifndef BOOTLOADER
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static bool hold_button_old = false;
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#else
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#define hold_button false
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#endif /* !BOOTLOADER */
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#endif
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static short _dbop_din = BUTTON_NONE;
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extern void lcd_button_support(void);
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/* in the lcd driver */
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extern bool lcd_button_support(void);
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void button_init_device(void)
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{
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GPIOA_DIR |= (1<<1);
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GPIOA_PIN(1) = (1<<1);
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}
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/* clickwheel */
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#if !defined(BOOTLOADER) && defined(HAVE_SCROLLWHEEL)
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static void clickwheel(void)
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static void scrollwheel(void)
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{
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static unsigned int old_wheel_value = 0;
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static unsigned int wheel_value = 0;
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static unsigned int wheel_repeat = BUTTON_NONE;
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static unsigned old_wheel_value = 0;
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static unsigned wheel_value = 0;
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static unsigned wheel_repeat = BUTTON_NONE;
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unsigned btn = BUTTON_NONE;
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/* getting BUTTON_REPEAT works like this: We increment repeat by 2 if the
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* wheel was turned, and decrement it by 1 each tick,
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* that means: if you change the wheel fast enough, repeat will be >1 and
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* we send BUTTON_REPEAT
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*/
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static int repeat;
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static int repeat = 0;
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/* we omit 3 of 4 posts to the button_queue, that works better, so count */
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static int counter = 0;
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/* Read wheel
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@ -77,10 +78,7 @@ static void clickwheel(void)
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};
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wheel_value = _dbop_din & (1<<13|1<<14);
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wheel_value >>= 13;
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/* did the wheel value change? */
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if (!hold_button)
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{
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unsigned int btn = BUTTON_NONE;
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if (old_wheel_value == wheel_tbl[0][wheel_value])
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btn = BUTTON_SCROLL_FWD;
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else if (old_wheel_value == wheel_tbl[1][wheel_value])
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@ -109,14 +107,12 @@ static void clickwheel(void)
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{
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buttonlight_on();
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backlight_on();
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/* 1<<24 is rather arbitary, seems to work well */
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queue_post(&button_queue, btn, 1<<24);
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/* message posted - reset count */
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counter = 0;
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}
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}
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}
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}
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if (repeat > 0)
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repeat--;
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else
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@ -130,10 +126,16 @@ bool button_hold(void)
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return hold_button;
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}
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static int button_dbop(void)
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static short button_dbop(void)
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{
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int ret = 0;
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lcd_button_support();
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/* skip home reading if lcd_button_support was blocked,
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* since the dbop bit 15 is invalid then, and use the old value instead */
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/* -20 (arbitary value) indicates valid home button read */
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int old_home = -20;
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int delay = 0;
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if(!lcd_button_support())
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old_home = (_dbop_din & 1<<15);
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/* Wait for fifo to empty */
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while ((DBOP_STAT & (1<<10)) == 0);
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@ -142,19 +144,11 @@ static int button_dbop(void)
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DBOP_TIMPOL_01 = 0xe167e167;
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DBOP_TIMPOL_23 = 0xe167006e;
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int loop = 0;
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do
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{
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asm volatile ("nop\n");
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loop++;
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} while(loop < 64);
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while(delay++ < 64);
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DBOP_CTRL |= (1<<15); /* start read */
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int temp;
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do
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{
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temp = DBOP_STAT;
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} while ((temp & (1<<16)) == 0); /* wait for valid data */
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((DBOP_STAT & (1<<16)) == 0); /* wait for valid data */
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_dbop_din = DBOP_DIN; /* now read */
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@ -164,23 +158,9 @@ static int button_dbop(void)
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DBOP_CTRL |= (1<<16);
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DBOP_CTRL &= ~(1<<19);
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#if !defined(BOOTLOADER)
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hold_button = _dbop_din & (1<<12);
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if (hold_button)
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return BUTTON_NONE;
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#if defined(HAVE_SCROLLWHEEL)
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/* read wheel on bit 13 & 14, but sent to the button queue seperately */
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clickwheel();
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#endif
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#endif
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/* read power on bit 8 */
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if (_dbop_din & (1<<8))
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ret |= BUTTON_POWER;
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/* read home on bit 15 */
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if(!(_dbop_din & (1<<15)))
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ret |= BUTTON_HOME;
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return ret;
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if (old_home != -20)
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_dbop_din |= old_home;
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return _dbop_din;
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}
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/* for the debug menu */
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@ -208,8 +188,8 @@ static int button_gpio(void)
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GPIOC_DIR &= ~(1<<2|1<<3|1<<4|1<<5|1<<6);
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/* small delay needed to read buttons correctly */
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int delay = 50;
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while(delay >0) delay--;
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int delay = 0;
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while(delay++ < 32);
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/* direct GPIO connections */
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if (!GPIOC_PIN(3))
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@ -234,9 +214,35 @@ static int button_gpio(void)
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*/
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int button_read_device(void)
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{
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int ret = BUTTON_NONE;
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ret |= button_dbop();
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ret |= button_gpio();
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int btn = BUTTON_NONE;
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short dbop = button_dbop();
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static unsigned power_counter = HZ;
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/* hold button */
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if(dbop & (1<<12))
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{
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power_counter = 0;
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hold_button = true;
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}
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else
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{
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/* might wrap, but shouldn't be much of an issue*/
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power_counter++;
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hold_button = false;
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#if defined(HAVE_SCROLLWHEEL) && !defined(BOOTLOADER)
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/* read wheel on bit 13 & 14, but sent to the button queue seperately */
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scrollwheel();
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#endif
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/* read power on bit 8, but not if hold button was just released, since
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* you basically always hit power due to the slider mechanism after releasing
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* hold (wait ~1 sec) */
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if (dbop & (1<<8) && power_counter>HZ)
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btn |= BUTTON_POWER;
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/* read home on bit 15 */
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if (!(dbop & (1<<15)))
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btn |= BUTTON_HOME;
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btn |= button_gpio();
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}
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#ifndef BOOTLOADER
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/* light handling */
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if (hold_button != hold_button_old)
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@ -246,5 +252,5 @@ int button_read_device(void)
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}
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#endif /* BOOTLOADER */
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return ret;
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return btn;
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}
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@ -347,11 +347,11 @@ void lcd_update_rect(int x, int y, int width, int height)
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}
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/* writes one read pixel outside the visible area, needed for correct dbop reads */
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void lcd_button_support(void)
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bool lcd_button_support(void)
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{
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fb_data data = 0xf<<12;
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if (lcd_busy)
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return;
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return false;
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lcd_write_reg(R_ENTRY_MODE, R_ENTRY_MODE_HORZ);
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/* Set start position and window */
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@ -359,4 +359,6 @@ void lcd_button_support(void)
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lcd_write_cmd(R_WRITE_DATA_2_GRAM);
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lcd_write_data(&data, 1);
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return true;
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}
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